See this thread: https://esdiscuss.org/topic/es8-proposal-optional-static-typing...

		tycho01 on July 3, 2017 \| parent \| context \| favorite \| on: Why We Chose Typescript See this thread: https://esdiscuss.org/topic/es8-proposal-optional-static-typ... Note that things have moved a bit, and we're now only a few standing proposals away from being able to properly infer the challenging functions mentioned there.